Magnetic device for attachment on an exterior wall of a filter canister

Abstract

A magnetic device for attachment on an exterior wall of a canister where the canister is mounted within a liquid flow path. The purpose of the device is to attract ferrous particulate matter flowing within the flow path and cause that ferrous particulate matter to be fixed to the inside surface of the canister therefore no longer flowing in the flow path. The device has a frame which includes a cavity and within that cavity is mounted a baseplate. Mounted on the baseplate are a pair of blocks. Mounted on each of the blocks is a plurality of magnets with the magnets mounted in a side abutting relationship in conjunction with each block. Between the blocks is located a bridge. The bridge permits limited flexing of the frame so the frame can be used to accommodate to different diameters of canisters within about a one-half inch range.

1. A magnetic device adapted for attachment to an exterior wall of a cylindrical filter canister, said magnetic device having a resting curvature, said device comprising:
 a non-ferrous frame having an internal cavity; 
 a single ferrous baseplate mounted within said cavity, said ferrous baseplate having an exterior surface and an interior surface, said exterior surface to be located further from the canister when installed thereon, said baseplate having a peripheral edge, said peripheral edge being embedded within said frame; 
 a pair of ferrous blocks being mounted on said interior surface, said ferrous blocks being spaced apart forming a bridge between said blocks, said bridge functioning as a fulcrum permitting flexing of said frame to assume different curvatures of said frame from said resting curvature thereby permitting said magnetic device to adjust to different diameters of filter canisters in order to be mounted flush against each of these canisters; 
 a plurality of magnets mounted within said cavity with said magnets being mounted directly adjacent said blocks, said magnets substantially covering said blocks dividing said magnets into a pair of spaced apart zones separated by said bridge, said magnets having an exposed surface adapted to be placed flush against the filter canister, whereby said magnets generate a magnetic force which not only secures said magnetic device to a filter canister but generates a magnetic field within the canister which attracts and holds ferrous particulate matter which is flowing through the liquid flow path which includes the filter canister against an interior sidewall of the canister preventing such from exiting the canister. 
 
   
   
     2. The magnetic device as defined in  claim 1  wherein:
 said single ferrous baseplate completely covers said cavity, said baseplate having a peripheral edge, said peripheral edge being embedded within said frame. 
 
   
   
     3. The magnetic device as defined in  claim 1  wherein:
 said frame being enclosing. 
 
   
   
     4. The magnetic device as defined in  claim 1  wherein:
 each of said ferrous blocks being fixedly secured to said single ferrous baseplate. 
 
   
   
     5. The magnetic device as defined in  claim 1  wherein:
 each of said ferrous blocks being of the same size. 
 
   
   
     6. The magnetic device as defined in  claim 1  wherein:
 each of said ferrous blocks being constructed of solid metallic material. 
 
   
   
     7. The magnetic device as defined in  claim 1  wherein:
 each of said ferrous blocks being constructed of a resilient material within which is impregnated ferrous particulate matter. 
 
   
   
     8. The magnetic device as defined in  claim 7  wherein:
 said resilient material including plastic. 
 
   
   
     9. The magnetic device as defined in  claim 7  wherein:
 said resilient material including rubber. 
 
   
   
     10. The magnetic device as defined in  claim 7  wherein:
 said resilient material including a combination of rubber and plastic. 
 
   
   
     11. The magnetic device as defined in  claim 1  wherein:
 said resting curvature being the arc of a circle. 
 
   
   
     12. The magnetic device as defined in  claim 1  wherein:
 said resting curvature being at least one hundred twenty degrees. 
 
   
   
     13. The magnetic device as defined in  claim 1  wherein:
 said ferrous baseplate being between 0.022 inches to 0.027 inches in thickness. 
 
   
   
     14. The magnetic device as defined in  claim 1  wherein:
 said blocks being constructed of a resilient material impregnated with ferrous particle matter, a pair of spaced apart inner plates being mounted on said resilient material, said magnets being mounted on said inner plates. 
 
   
   
     15. The magnetic device as defined in  claim 14  wherein:
 each of said blocks being of the same thickness. 
 
   
   
     16. The magnetic device as defined in  claim 1  wherein:
 said magnets being mounted directly on said blocks.